活动过渡效果：滑入顶部活动并缩放底部活动

Question

我希望达到下面显示的效果。效果来自Facebook。

我在活动尝试这样一个：

overridePendingTransition(R.anim.anim_left_to_right, R.anim.scale_out); 

而且在活动B：

overridePendingTransition(R.anim.anim_right_to_left, R.anim.scale_in); 

凡XML显示如下：

R.anim.anim_left_to_right

<set xmlns:android="http://schemas.android.com/apk/res/android" 
    android:shareInterpolator="false"> 
    <translate android:fromXDelta="100%" 
     android:toXDelta="0%" 
     android:fromYDelta="0%" 
     android:toYDelta="0%" 
     android:duration="300"/> 
</set> 

R.anim.anim_right_to_left

<set xmlns:android="http://schemas.android.com/apk/res/android" 
    android:shareInterpolator="false"> 
    <translate 
     android:fromXDelta="0%" android:toXDelta="100%" 
     android:fromYDelta="0%" android:toYDelta="0%" 
     android:duration="300" /> 
</set> 

R.anim.scale_out

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android"> 
     <scale android:fromXScale="1.0" 
      android:fromYScale="1.0" 
      android:toXScale="1.0" 
      android:toYScale="1.0" 
      android:duration="500" 
      android:fillBefore="false" /> 
</set> 

R.anim.scale_in

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android"> 
     <scale android:fromXScale="1.0" 
      android:fromYScale="1.0" 
      android:toXScale="0.8" 
      android:toYScale="0.8" 
      android:duration="500" 
      android:fillBefore="false" /> 
</set> 

但是，它没有达到预期的效果 - 出于某种原因，我可能无法正确理解。任何人都可以帮助我吗？

Answer 1

样式：

<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar"> 
    .... 
    <item name="android:windowAnimationStyle">@style/ActivityAnimation</item> 
</style> 

<style name="ActivityAnimation" parent="@android:style/Animation"> 
    <item name="android:activityOpenEnterAnimation">@anim/activity_in</item> 
    <item name="android:activityOpenExitAnimation">@anim/activity_out</item> 
    <item name="android:activityCloseEnterAnimation">@anim/activity_back_in</item> 
    <item name="android:activityCloseExitAnimation">@anim/activity_back_out</item> 
</style> 

activity_in.xml：

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android"> 
    <translate 
     android:fromXDelta="100%p" 
     android:toXDelta="0%p" 
     android:duration="@integer/activityAnimationTime"> 
    </translate> 
</set> 

activity_out.xml：

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android"> 
    <scale 
     android:fromXScale="1.0" 
     android:toXScale="0.84" 
     android:fromYScale="1.0" 
     android:toYScale="0.84" 
     android:duration="@integer/activityAnimationTime"/> 
    <translate 
     android:fromYDelta="0%" 
     android:fromXDelta="0%" 
     android:toYDelta="8%" 
     android:toXDelta="16%" 
     android:duration="@integer/activityAnimationTime"/> 

    <alpha 
     android:fromAlpha="1.0" 
     android:toAlpha="0.25" 
     android:duration="@integer/activityAnimationTime"/> 

</set> 

activity_back_in.xml：

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android"> 
    <scale 
     android:fromXScale="0.84" 
     android:toXScale="1.0" 
     android:fromYScale="0.84" 
     android:toYScale="1.0" 
     android:duration="@integer/activityAnimationTime"/> 
    <translate 
     android:fromYDelta="8%" 
     android:fromXDelta="16%" 
     android:toYDelta="0%" 
     android:toXDelta="0%" 
     android:duration="@integer/activityAnimationTime"/> 

    <alpha 
     android:fromAlpha="0.25" 
     android:toAlpha="1.0" 
     android:duration="@integer/activityAnimationTime"/> 

</set> 

activity_back_out.xml：

<?xml version="1.0" encoding="utf-8"?> 
<set xmlns:android="http://schemas.android.com/apk/res/android"> 
    <translate 
     android:fromXDelta="0%p" 
     android:toXDelta="100%p" 
     android:duration="@integer/activityAnimationTime"> 
    </translate> 
</set>